| (19) |
 |
|
(11) |
EP 2 243 984 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
23.03.2011 Bulletin 2011/12 |
| (43) |
Date of publication A2: |
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27.10.2010 Bulletin 2010/43 |
| (22) |
Date of filing: 08.06.2001 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
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DE FR IT |
| (30) |
Priority: |
15.06.2000 JP 2000179420
|
| (62) |
Application number of the earlier application in accordance with Art. 76 EPC: |
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08075692.7 / 1995495 |
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01305008.3 / 1164312 |
| (71) |
Applicant: BorgWarner Morse TEC Japan K.K. |
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Nabari City, Mie Prefecture 518-0495 (JP) |
|
| (72) |
Inventor: |
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- Tada, Naosumi
Mie Perfecture 518-0495 (JP)
|
| (74) |
Representative: Lerwill, John et al |
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A.A. Thornton & Co.
235 High Holborn
London, WC1V 7LE
London, WC1V 7LE (GB) |
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| |
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(57) A blade tensioner (1) is configured with blade shoe (2) having chain sliding face
(20a), base (4) that supports base part (2a) of blade shoe (2) while allowing it to
pivot freely, and blade spring (3) in which base part (3a) is fixed to tip part (2b)
of blade shoe (2). Warped part (3b) provided at the tip contacts inner face (20b)
of blade shoe (2), and curved part (3c) provided at the midpoint of base (4) contacts
sliding face (4a) of base (4). The sliding resistance generated between warped part
(3b) of blade spring (3) and inner face (20b) and between curved part (3c) and sliding
face (4a) increase the natural frequency of the blade tensioner.